CN102207046A - EGR (Exhaust Gas Recycling) system of automobile engine - Google Patents
EGR (Exhaust Gas Recycling) system of automobile engine Download PDFInfo
- Publication number
- CN102207046A CN102207046A CN2011101461213A CN201110146121A CN102207046A CN 102207046 A CN102207046 A CN 102207046A CN 2011101461213 A CN2011101461213 A CN 2011101461213A CN 201110146121 A CN201110146121 A CN 201110146121A CN 102207046 A CN102207046 A CN 102207046A
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- Prior art keywords
- egr
- engine
- cooler
- gas
- exhaust gas
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- 238000004064 recycling Methods 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 46
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 239000002912 waste gas Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention provides an EGR (Exhaust Gas Recycling) system of an automobile engine, which is applicable for reducing oil consumption and emission of the engine by utilizing EGR outside. The EGR system of the automobile engine comprises a turbine, a catalyzer, a gas compressor, an inter cooler and an EGR cooler. The turbine and the catalyzer are installed at rear of an exhaust manifold in turn. The gas compressor is installed at a gas inlet of the engine and mechanically connected with the turbine. The inner cooler is installed at the inlet of a gas inlet manifold of the engine. An exhaust channel of N cylinders in the engine is directly connected with a gas inlet of the EGR cooler. A gas outlet of the EGR cooler is connected with the inner cooler. N is more than or equal to 1 and less than M. The M is the total cylinder number of the engine. The N is an integer. According to the EGR system of the automobile engine, all working condition points of the automobile engine can stably work under a constant external EGR rate condition; and the EGR waste gas of the automobile engine can be utilized as a heat source, which is used for heating automobiles and providing warm air.
Description
Technical field
The invention belongs to field of automobile, specially refer to a kind of motor car engine egr system.
Background technique
At present, automobile heating adopts following several modes usually: 1. stand alone type heating, promptly give birth to heat or use the electric heater heating system with oil inflame, but no matter be that the directly living heat of oil inflame also is to use the electric heater heating all to need consume fuel, its manufacturing and user cost are higher; 2. the most widely used heating system on the present automobile, it is thermal source heated utilizing motor car engine pump circulation cooling water, in the heat exchanger in the compartment of the pump circulation cooling water of motor introducing soon is automobile heating, but winter, engine water temperature was low during cold-starting automobile, warm braw is difficult to heating fast, the difficult laws and regulations requirement that satisfies defrosting-defogging also causes the engine warm-up overlong time in addition easily, influences its proper functioning and worsens discharging; 3. utilize waste heat of vehicle engine exhaust gas or waste heating, because of waste heat of vehicle engine exhaust gas accounts for about 30% of fuel oil heat, the heat source abundance, but generally need to increase extra means at present, add the thermal-arrest cover on three-way valve or the gas exhaust manifold as adding before the silencing apparatus, the former can increase the automobile engine to exhaust back pressure, the light-off time of catalyst converter when the latter then can influence engine cold-start, thus finally influence engine performance and discharging.In sum, all there is certain drawback in above-mentioned three kinds of automobile heating modes.
In addition, along with the strictness day by day of countries in the world automobile emission regulation and fuel price continue soaringly, the application of external exhaust gas recirculation (EGR) technology on motor car engine that can reduce automobile fuel consumption and discharging is more and more widely.As shown in Figure 1, traditional egr system comprises turbine 1, gas compressor 2, catalyst converter 3, cooler for recycled exhaust gas 4, EGR control gear 5, intercooler 6, intake manifold 7 and gas exhaust manifold 8, concrete mode is in gas exhaust manifold 8(or catalyst converter 3 backs) locate to get cycle gas, introduce intercooler 6 through cooler for recycled exhaust gas 4 and EGR control gear 5, after intake manifold 7 enters cylinder, but because of motor car engine is only introduced outside EGR at the part operating point, thereby the waste heat that utilizes this cycle gas that is difficult to rationally continue is given automobile heating, therefore above-mentioned automobile with egr system generally adopts the heating of pump circulation water, the motor car engine water outlet is through thermostat base 9, introduce warm braw heat exchanger 11 by pipeline 10,12 import motor short circle pipeline 13 cooled engine again, so circulation by the road through warm braw heat exchanger 11 cooled hot water.
Summary of the invention
The objective of the invention is to propose a kind of motor car engine egr system, be suitable for utilizing outer loop waste gas (EGR) to reduce the oil consumption and the discharging of motor.
Motor car engine egr system of the present invention comprises turbine, catalyst converter, gas compressor, intercooler, cooler for recycled exhaust gas, described turbine and catalyst converter are installed on the gas exhaust manifold rear successively, described gas compressor is installed on the engine intake place and is connected with turbomachinery, described intercooler is installed on the engine intake manifold ingress, key is have the air outlet flue of N cylinder directly to be connected with the suction port of cooler for recycled exhaust gas in the cylinder of motor, the air outlet of described cooler for recycled exhaust gas is connected with intercooler, described 1≤N＜M, described M is the total cylinder number of motor, and N is an integer.
Only compare with the orthodox car engine EGR at part operating point stable operation, the present invention can realize that all operating points of motor car engine all lead stable operation under the condition at a constant outside EGR, convenient control, reduced the EGR control gear simultaneously, reduced cost, occupy little space, help in narrow and small engine compartment, arranging.
Preferably, described N=1, N crosses conference and causes the gas handling system of most exhausts via the direct return engine of cooler for recycled exhaust gas, and without gas exhaust manifold, the underpressure of gas exhaust manifold like this, and then can cause the turbo-power deficiency, make gas compressor work ineffective, reduce the injection amount of fresh air, influence engine operation.
Further, be provided with a warm braw heat exchanger in the pipeline between described cooler for recycled exhaust gas and the intercooler, be provided with a warm braw heat exchanger in the pipeline between the air outlet flue of perhaps described cooler for recycled exhaust gas and cylinder.The warm braw heat exchanger can utilize the waste heat of the cooled external engine cycle gas of cooler for recycled exhaust gas (EGR) or the direct waste gas of discharging of cylinder to provide forced-air heating as thermal source in car like this, can reduce the component of egr system and automobile warm-air on the one hand, save arrangement space, reduce integral vehicle cost, reduce the automobile energy consumption; In addition, compartment warm braw heat exchanger also can be considered secondary or three grades of coolers of outside EGR, further reduces the temperature of cycle gas (EGR), promotes engine performance; The demand of quick warm braw and defrosting-defogging in the time of simultaneously can also satisfying engine cold-start well.
Motor car engine egr system novel structure of the present invention, can realize that not only all operating points of motor car engine all lead stable operation under the condition at a constant outside EGR, can also utilize this motor car engine outer loop waste gas (EGR) to provide warm braw to automobile heating as thermal source, the component of motor car engine egr system and automobile warm-air supply system have been reduced, saved motor front deck arrangement space, save integral vehicle cost, and when efficiently solving cold-starting automobile the compartment forced-air heating slowly, the problem of each windscreen quickly defrosting demist of car load.
Description of drawings
Fig. 1 is the structural representation of orthodox car engine EGR system and automobile warm-air heating system;
Fig. 2 is the structural representation of example egr system of the present invention and automobile warm-air heating system;
Be labeled as among the figure: 1, turbine; 2, gas compressor; 3, catalyst converter; 4, cooler for recycled exhaust gas; 5, EGR control gear; 6, intercooler; 7, intake manifold; 8, gas exhaust manifold; 9, thermostat base; 10, the pipeline between thermostat base and the warm braw heat exchanger; 11, warm braw heat exchanger; 12, the pipeline between warm braw heat exchanger and the motor short circle pipeline; 13, motor short circle pipeline; 14, the air outlet flue of cylinder.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment.
Embodiment 1:
As shown in Figure 2, the motor car engine egr system of present embodiment comprises turbine 1, gas compressor 2, catalyst converter 3, intercooler 6, cooler for recycled exhaust gas 4, turbine 1 and catalyst converter 3 are installed on gas exhaust manifold 8 rears successively, gas compressor 2 be installed on the engine intake place and with turbine 1 mechanical connection, intercooler 6 is installed on engine intake manifold 7 ingress, have the air outlet flue 14 of a cylinder directly to be connected with the suction port of cooler for recycled exhaust gas 4 in the cylinder of motor, the air outlet of cooler for recycled exhaust gas 4 is connected with intercooler 6 through a warm braw heat exchanger 11 backs.
When work, all operating points of motor car engine all lead stable operation under the condition at a constant outside EGR, convenient control, warm braw heat exchanger 11 can utilize the waste heat of cooler for recycled exhaust gas 4 cooled external engine cycle gas (EGR) to provide forced-air heating as thermal source in car simultaneously, can reduce the component of egr system and automobile warm-air on the one hand, save arrangement space, reduce integral vehicle cost, reduce the automobile energy consumption; In addition, compartment warm braw heat exchanger 11 also can be considered secondary or three grades of coolers of outside EGR, further reduces the temperature of cycle gas (EGR), promotes engine performance; The demand of quick warm braw and defrosting-defogging in the time of simultaneously can also satisfying engine cold-start well.
Claims (4)
1. motor car engine egr system, comprise turbine, catalyst converter, gas compressor, intercooler, cooler for recycled exhaust gas, described turbine and catalyst converter are installed on the gas exhaust manifold rear successively, described gas compressor is installed on the engine intake place and is connected with turbomachinery, described intercooler is installed on the engine intake manifold ingress, it is characterized in that having the air outlet flue of N cylinder directly to be connected in the cylinder of motor with the suction port of cooler for recycled exhaust gas, the air outlet of described cooler for recycled exhaust gas is connected with intercooler, described 1≤N＜M, described M is the total cylinder number of motor, and N is an integer.
2. motor car engine egr system according to claim 1 is characterized in that described N=1.
3. motor car engine egr system according to claim 1 and 2 is characterized in that being provided with in the pipeline between described cooler for recycled exhaust gas and the intercooler warm braw heat exchanger.
4. motor car engine egr system according to claim 1 and 2 is characterized in that being provided with a warm braw heat exchanger in the pipeline between the air outlet flue of described cooler for recycled exhaust gas and cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101461213A CN102207046A (en) | 2011-06-01 | 2011-06-01 | EGR (Exhaust Gas Recycling) system of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101461213A CN102207046A (en) | 2011-06-01 | 2011-06-01 | EGR (Exhaust Gas Recycling) system of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207046A true CN102207046A (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101461213A Pending CN102207046A (en) | 2011-06-01 | 2011-06-01 | EGR (Exhaust Gas Recycling) system of automobile engine |
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| Country | Link |
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| CN (1) | CN102207046A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072444A (en) * | 2011-10-25 | 2013-05-01 | 通用汽车环球科技运作有限责任公司 | System and method for heating a vehicle cabin |
| CN103807057A (en) * | 2014-01-22 | 2014-05-21 | 河南科技大学 | EGR system for automobile engine |
| CN107120163A (en) * | 2016-02-25 | 2017-09-01 | 福特环球技术公司 | method and system for exhaust heat recovery |
| CN107288782A (en) * | 2017-08-22 | 2017-10-24 | 芜湖恒耀汽车零部件有限公司 | A kind of vehicle exhaust EGR |
| CN107882660A (en) * | 2017-11-22 | 2018-04-06 | 宁波吉利罗佑发动机零部件有限公司 | A kind of cooling structure of exhaust gases in automobile egr system |
| CN109723581A (en) * | 2017-10-27 | 2019-05-07 | 现代自动车株式会社 | Engine system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007008196A1 (en) * | 2005-07-11 | 2007-01-18 | Mack Trucks, Inc. | Engine and method of maintaining engine exhaust temperature |
| JP2009214602A (en) * | 2008-03-07 | 2009-09-24 | Toyota Motor Corp | Vehicular heating system |
| US20110041495A1 (en) * | 2009-08-24 | 2011-02-24 | General Electric Company | Systems and methods for exhaust gas recirculation |
-
2011
- 2011-06-01 CN CN2011101461213A patent/CN102207046A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007008196A1 (en) * | 2005-07-11 | 2007-01-18 | Mack Trucks, Inc. | Engine and method of maintaining engine exhaust temperature |
| JP2009214602A (en) * | 2008-03-07 | 2009-09-24 | Toyota Motor Corp | Vehicular heating system |
| US20110041495A1 (en) * | 2009-08-24 | 2011-02-24 | General Electric Company | Systems and methods for exhaust gas recirculation |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072444A (en) * | 2011-10-25 | 2013-05-01 | 通用汽车环球科技运作有限责任公司 | System and method for heating a vehicle cabin |
| CN103072444B (en) * | 2011-10-25 | 2015-07-15 | 通用汽车环球科技运作有限责任公司 | System and method for heating a vehicle cabin |
| US9956848B2 (en) | 2011-10-25 | 2018-05-01 | GM Global Technology Operations LLC | System and method for heating a vehicle cabin |
| CN103807057A (en) * | 2014-01-22 | 2014-05-21 | 河南科技大学 | EGR system for automobile engine |
| CN103807057B (en) * | 2014-01-22 | 2016-09-14 | 河南科技大学 | A kind of EGR system |
| CN107120163A (en) * | 2016-02-25 | 2017-09-01 | 福特环球技术公司 | method and system for exhaust heat recovery |
| CN107120163B (en) * | 2016-02-25 | 2021-02-09 | 福特环球技术公司 | Method and system for exhaust heat recovery |
| CN107288782A (en) * | 2017-08-22 | 2017-10-24 | 芜湖恒耀汽车零部件有限公司 | A kind of vehicle exhaust EGR |
| US10883453B2 (en) | 2017-10-27 | 2021-01-05 | Hyundai Motor Company | Engine system |
| CN109723581A (en) * | 2017-10-27 | 2019-05-07 | 现代自动车株式会社 | Engine system |
| CN109723581B (en) * | 2017-10-27 | 2021-06-11 | 现代自动车株式会社 | Engine system |
| US11359585B2 (en) | 2017-10-27 | 2022-06-14 | Hyundai Motor Company | Engine system |
| CN107882660A (en) * | 2017-11-22 | 2018-04-06 | 宁波吉利罗佑发动机零部件有限公司 | A kind of cooling structure of exhaust gases in automobile egr system |
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Application publication date: 20111005 |